A simple and selective carbon paste electrode has been developed for the electrochemicaldetermination of acyclovir (ACV). This electrode was designed by incorporation of multiwalledcarbon nanotubes (MWCNTs) and ZnO nanoparticles into the carbon paste matrix,and then poly (o-aminophenol; OAP) film were subsequently electropolymerized on it. Thesurface structure of nanoparticles were characterize...

A simple and selective carbon paste electrode has been developed for the electrochemicaldetermination of acyclovir (ACV). This electrode was designed by incorporation of multiwalledcarbon nanotubes (MWCNTs) and ZnO nanoparticles into the carbon paste matrix,and then poly (o-aminophenol; OAP) film were subsequently electropolymerized on it. Thesurface structure of nanoparticles were characterize...

We are interested in using scanning electrochemical microscopy (SECM) to study the chemistry of graphene. First we discuss the study of the local chemical reactivity of graphene. Then we show fabrication of a 500 nm SECM probe electrode to improve the resolution of SECM imaging. Summary of Research: We are using scanning electrochemical microscopy (SECM), a quantitative scanning probe technique...

A novel clinical glucose biosensor fabricated using functionalized metalloid-polymer (silver-silica coated with polyethylene glycol) hybrid nanoparticles on the surface of a graphene oxide nanosheet is reported. The cyclic voltammetric response of glucose oxidase modification on the surface of a functionalized graphene oxide electrode showed a surface-confined reaction and an effective redox po...

Mechanical and electrical losses induced by an electrode material greatly influence the performance of bulk acoustic wave (BAW) resonators. Graphene as a conducting and virtually massless 2D material is a suitable candidate as an alternative electrode material for BAW resonators which reduces electrode induced mechanical losses. In this publication we show that graphene acts as an active top el...

A novel carbon paste electrode modified with ionic liquid (n-hexyl-3-methylimidazolium hexafluoro phosphate) and magnetic core-shell manganese ferrite nanoparticles (MCSILCPE) was fabricated. The electrochemical study of the modified electrode, as well as its efficiency for electro-oxidation of tryptophan, is described. Cyclic voltammetry (CV), choronoamperometry (CHA) and square wave voltammet...

the combination of graphene and nickel oxide nanoparticles yields nanostructured electrochemical sensor formed a novel kind of structurally uniform and electrocatalytic activity material. in cyclic voltammetry studies, in the presence of epinephrine, nickel oxide / graphene  composite modified electrode shows a significantly higher current response for epinephrine oxidation. based on differenti...

3D graphene-nanowall-decorated carbon felts (CF) are synthesized via an in situ microwave plasma enhanced chemical vapor deposition method and used as positive electrode for vanadium redox flow battery (VRFB). The carbon fibers in CF are successfully wrapped by vertically grown graphene nanowalls, which not only increase the electrode specific area, but also expose a high density of sharp graph...

Graphene has a unique atom-thick two-dimensional structure and excellent properties, making it attractive for a variety of electrochemical applications, including electrosynthesis, electrochemical sensors or electrocatalysis, and energy conversion and storage. However, the electrochemistry of single-layer graphene has not yet been well understood, possibly due to the technical difficulties in h...